Tetrahedron

Synthesis of chalcones and flavanones using Julia–Kocienski olefination

A Kumar, S Sharma, VD Tripathi, S Srivastava

Index: Kumar, Atul; Sharma, Siddharth; Tripathi, Vishwa Deepak; Srivastava, Suman Tetrahedron, 2010 , vol. 66, # 48 p. 9445 - 9449

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Citation Number: 30

Abstract

A new application of Julia–Kocienski olefination for the synthesis of chalcones and flavanones has been described. 2-(Benzo [d] thiazol-2-ylsulfonyl)-1-phenylethanones have been developed as new reagents for direct Julia–Kocienski olefination with aldehydes in the presence of a base, afforded chalcones in good to excellent yields. Whereas, 2-(benzo [d] thiazol-2-ylsulfonyl)-1-(2-hydroxyphenyl) ethanone reacted with the aromatic aldehydes to ...